If you’re navigating the world of marine fenders—outfitting a commercial port, managing ship-to-ship operations, or safeguarding offshore platforms—you’ve likely encountered pneumatic fenders. Also known as Yokohama fenders, these floating, air-filled barriers are essential for absorbing impact energy and preventing damage during vessel berthing. To help you understand their importance and functionality, we’ve compiled answers to the top 10 frequently asked questions about pneumatic fenders.
Hengyang Product Page
1. What Is a Pneumatic Fender?
A pneumatic fender is a cylindrical, air-filled marine fender made from synthetic-cord-reinforced rubber. It floats on water and acts as a shock absorber between ships or between a ship and a dock, reducing impact during berthing operations.
2. What Are Pneumatic Rubber Fenders Used For?
Pneumatic fenders are versatile and used in various maritime operations, including:
- Ship-to-ship (STS) transfers
- Ship-to-dock berthing
- Temporary mooring
- Offshore platform protection
- Submarine docking (using hydro-pneumatic fenders)
Their adaptability makes them suitable for vessels ranging from small yachts to large tankers and naval ships.
Pneumatic fenders come in several types to suit different applications:
- Chain-Tire-Net (CTN) Type: Equipped with a protective net of chains and tires for added durability.
- Sling Type: Simpler design without external netting, suitable for smaller vessels.
- Hydro-Pneumatic Type: Partially submerged fenders designed for submarines and vessels with low freeboards.
- Rope Net Type: Uses a rope net for protection, offering a balance between weight and durability.
4. How Do Pneumatic Rubber Fenders Work?
Pneumatic fenders use compressed air to absorb kinetic energy during vessel contact. When a ship approaches a dock or another vessel, the fender compresses, dissipating the energy and minimizing impact forces. This mechanism protects both the vessel and the docking structure from damage.
5. What Are the Advantages of Pneumatic Fenders?
Pneumatic fenders offer several benefits:
- High Energy Absorption: Effectively dissipates impact energy.
- Low Reaction Force: Reduces stress on vessel hulls and docking structures.
- Adaptability: Suitable for various vessel sizes and types.
- Easy Installation: Lightweight and simple to deploy.
- Durability: Resistant to harsh marine conditions, with a service life of up to 20 years.
6. What Sizes and Pressures Are Available?
NANHAI pneumatic fenders are available in a range of sizes, typically from 300mm to mm in diameter and 500mm to mm in length. They come in two standard internal pressures: 50 kPa and 80 kPa. The choice depends on the specific application and the required energy absorption capacity.
7. How Are Pneumatic Fenders Maintained?
Maintenance involves regular inspections for air pressure, physical damage, and valve integrity. Due to their robust construction, pneumatic fenders require minimal upkeep, but routine checks ensure optimal performance and longevity.
The company is the world’s best Shield Type Steel River Dam supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.
8. Are Pneumatic Fenders Compliant with International Standards?
Yes, high-quality pneumatic fenders comply with ISO -1: standards, which specify requirements for performance, materials, and testing. Compliance ensures reliability and safety in marine operations.
9. Can Pneumatic Fenders Be Customized?
Nanhai, the manufacturer, is a world-leading supplier of pneumatic rubber fenders that offer customization options for pneumatic fenders, including size, color, pressure rating, and protective netting type. Customization ensures the fender meets specific operational requirements and environmental conditions.
10. How Do Pneumatic Fenders Compare to Other Fender Types?
Compared to solid rubber, pneumatic fenders provide superior energy absorption and lower reaction forces. Their floating design accommodates tidal variations and vessel movements, making them ideal for dynamic marine environments.
Conclusion
Pneumatic fenders are a critical component in maritime operations, offering unmatched protection for vessels and docking structures. Their versatility, durability, and compliance with international standards make them a preferred choice for ship fenders, marine fenders, and pneumatic rubber fenders across the industry.
For more information or to discuss specific requirements, consult with reputable marine fender suppliers who can provide tailored solutions to meet your operational needs.
The pneumatic fender is constructed of an inner rubber, synthetic-tire-cord layer, and outer rubber. All of those shall be vulcanized firmly and proven by compress test. Outer rubber layer covers the outside of the fender to protect the cord layers and the inner liner rubber from abrasion and other external forces. Inner rubber layer of a rubber membrane seals the pressurized air inside the fender. Synthetic-tyre-cord layer for reinforcement layer made of synthetic-tire-cord fabric, which maintains the internal air pressure of the fender. The fender of diameter mm and larger shall be equipped with a safety valve for releasing excess internal pressure when the fenders are over-compressed accidentally. Fenders are smaller than mm in diameter, and can be equipped with a safety valve if required.
What happens when your fender is damaged? Unlucky? Throw it away and buy a new one?
Often the value of a marine fender is not low. When it is damaged, the first thing people think of is to repair it instead of throwing it away and buying a new one. Therefore, it is particularly important to learn how to repair marine fenders. If the damage is a little serious, so must replace a new fender. But if it is only simple wear, it can be repaired and reused, thereby saving costs. Next, we can briefly understand the repair steps of marine fenders, and hope to help you.
Repair steps for Pnuematic Rubber Fenders:
- Delineate the repair range as the boundary of the polished surface. The repair range should extend to the surrounding cracks, and don’t miss any hidden injuries.
- Polish and repair part of the surface until the fiber thread is exposed, but do not damage the fiber thread.
- For longer cracks, first use the cord to sew. The stitch hole position is about 2~3cm away from the crack, and the stitch distance is about 10cm.
- Clean the surface of the part to be repaired with gasoline and let it dry.
- Apply a layer of glue. The glue is prepared by soaking raw rubber in gasoline.
- Seal the crack with a raw rubber strip with a thickness of 1cm and a width of 1cm larger than the crack.
- Brush the gasoline and let it dry.
As a professional marine equipment supplier, Boomarine provides a variety of marine fenders. As a designer and supplier of high-performance and advanced marine fender systems, we provide cost-effective end-to-end solutions. If you have any needs, please feel free to contact us.
Comments
Please Join Us to post.
0